"It seems your TOC is empty."
Since my e-book doesn't have a table of contents, I take it you're using "TOC" in a technical sense. Could you say more, please? Remember, I don't work with ePub code.
"Try this 'minimal' NCX."
I'm afraid I can't. I'm not creating the ePub file manually; it's being created automatically through a conversion at
Smashwords. The only thing I have control over is the DOC file I submit to Smashwords. None of my previously submitted files underwent this problem during conversion. I want to learn what the error messages mean, so that I can figure out whether the problem lies with the DOC file I'm submitting.
Sorry - I know this is a rather roundabout query.
But could somebody please tell me, in layman's language, what the error messages are referring to?